Duffel vs Delta
Side-by-side comparison of AI visibility scores, market position, and capabilities
Airline booking API enabling businesses to embed direct flight search, booking, and ancillary sales into their own products with modern developer tooling.
About
Duffel is a London-based travel technology company that provides a developer-friendly API for embedding airline flight search, booking, and ancillary product sales — such as seat selection, baggage, and cancellation protection — directly into any application or website without requiring GDS contracts or legacy ATPCO certification. The platform connects directly to airline reservation systems via NDC (New Distribution Capability) and traditional GDS channels, enabling businesses to access live flight inventory and fares with a single modern REST API. Duffel's comprehensive SDK for JavaScript, Python, Ruby, and PHP reduces the engineering time required to build flight booking capabilities from months to days, lowering the barrier for fintech companies, neobanks, super-apps, and travel startups to offer flight booking as part of a broader product. The platform handles payment processing, ticketing, and post-booking management including cancellations and exchanges, abstracting the complexity of airline commerce rules. Duffel makes money by taking a fee per booking rather than charging seat or subscription fees. Founded in 2017 by former Deliveroo and Google engineers, Duffel raised over $100M from investors including Benchmark, Index Ventures, and Avid Ventures.
FY2024 Revenue: $61.6B (+6.2% YoY) | Net income: $3.5B | Free cash flow: $3.4B | Served 200M+ customers | EPS guidance >$7.35 for 2025 | Operating cash flow: $8B
About
Delta Air Lines was founded in 1924 in Macon, Georgia, as a crop dusting operation, and has evolved through a century of consolidation, innovation, and reinvention into one of the world's premier airlines. Following its emergence from bankruptcy in 2007, Delta executed one of the most successful corporate turnarounds in aviation history, becoming the industry's most profitable and operationally reliable major carrier. Delta's mission is to connect the world with excellence, safety, and authentic hospitality.\n\nDelta operates a hub-and-spoke network from primary hubs in Atlanta, New York (JFK and LGA), Seattle, Los Angeles, Boston, Detroit, Minneapolis, and Salt Lake City. Its fleet of 900+ aircraft serves 300+ destinations across six continents. Delta's premium cabin strategy — expanding Comfort+, Delta One, and Delta One Suite offerings — has been a key revenue driver, along with its co-branded American Express card program, which generates billions in annual revenue from card spending and miles redemption. The SkyMiles loyalty program serves over 100 million enrolled members.\n\nDelta reported FY2024 revenue of $61.6B, a 6.2% year-over-year increase, with net income of $3.5B and service to 200M+ customers. EPS guidance for 2025 exceeds $7.35. Delta's operational reliability, premium brand positioning, and diversified revenue streams from loyalty and ancillaries have made it the most consistently profitable U.S. airline over the past decade, and a benchmark for operational excellence across the global aviation industry.
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